It was the Ospreys' worst-ever defeat to their old rivals, but Mujati's decision to sign a fresh deal will at least provide Steve Tandy's side with some cheer.

The 12-cap South Africa Test player arrived at the Liberty on a short-term deal in February amid a tight-head prop crisis that had seen Dmitri Arhip and Ma'afu Fia ruled out by injuries and Rhodri Jones named in Wales's squad for the Six Nations.

Mujati has joined the casualty list himself but he had previously played in seven out of eight games for the Ospreys and will stay with the region beyond the end of the campaign.

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The powerful Bulawayo-born player said: “I’ve settled in really well and I’m thrilled to be staying with the Ospreys longer-term.

"My family is here with me and everybody has made us really welcome. It’s a good environment to be in.

"While I’m pleased to be with the Ospreys next season, we have some really important business ahead of us on the field and that has to be the focus for everybody over the next few weeks.”

Ospreys prop Brian Mujati has signed a new deal to stay with the Ospreys

That important business will see the Ospreys look to upset the odds in their Guinness Pro12 semi-final against Munster in Limerick on May 20. They still made it through to the play-offs, but they will need to improve hugely just to be competitive at Thomond Park.

It is unclear whether Mujati will be ready for the tie, but the Ospreys will hope he is available at a time when they are still without Arhip and Fia.

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Of the 5ft 11in, 18st 8lb's player decision to extend his stay with the Llandarcy-based region, Tandy said: “This is excellent news.

"Brian has bags of experience and is a great character who has been a good addition to the squad so it’s really pleasing to be able to keep a player of his calibre.

"It’s always difficult for a player moving to a new team in-season and having to learn on the go but Brian has adapted to what we want really well, like the professional he is.

"It’s the same as Kieron Fonotia. He has had to swiftly get up to speed with new structures, new plays and do things differently from what he's used to. It’s never an easy ask but Brian has settled in very well.

“With the continued absence of Dmitri and Ma’afu Brian has had a big role to play. With a good pre-season under his belt, I think we’ll truly see the best of him.”

Sam Davies, Justin Tipuric, Dan Baker, Hanno Dirksen, Dan Lydiate (national dual contract) and Joe Thomas have all signed new deals for next season, while Wales internationals Cory Allen and James Hook are confirmed as additions to the squad ahead of 2017-18.

The Ospreys, meantime, will this week assess the severity of the ankle injury Biggar picked up against the Scarlets.